Overall, I quite enjoy this draft. The skip is pretty cool conceptually, and I do enjoy a monster that isn't malevolent or "insane" by default. I also like the grim message at the end, which spells out just how dangerous the skip truly is, and shows just how much the Foundation is willing to sacrifice to keep it contained.

I personally think that an interview log would make the draft perfect for me, especially one that reveals more of the skip's origins etc, though that would make the whole thing really long and would be hard to do since the skip can't really talk.

First of all, try to split up your paragraphs into smaller ones. Makes them more readable. My next paragraph is an example of how long an average paragraph should be.

And people generally don't like black bars in the special containment procedures. I personally don't really mind, but other users believe that there shouldn't be any censorship within the procedures, as Foundation personnel need to know as much info as they can in order to do their jobs. If said info is too sensitive, just leave it out of the procedures.

a natural research station

A "civilian research station" sounds better IMO.

Permission for the constructions

I think "construction" without the "s" sounds better.

of length and width both 10 meters and height 4 meters

Saying "with dimensions of 10 x 10 x 4 meters" is better.

at least 5 m of lead sandwiched

"sandwiches" doesn't sound too clinical. Try "located".

or offsite secondary bunker

"or the offsite secondary bunker"

in the aftermath of XXXX-NE-7-WGU Event.

"in the aftermath of the XXXX-NE-7-WGU Event."

although their exact function isn’t currently known

I think it ain't clinical to use "isn't". Try "is not".

Its skin is orange/red/yellow in color

Does it alternate between those colors, or is the Foundation unable to identify a specific color?

1100 degrees °C

This and other instances do no require "degrees", as they're redundant with "°C" already there.

1500 and ████°C

Is there a reason to censor the maximum temperature?

what is has recently consumed

"what it has recently consumed"

SCP-XXXX is both sentient and sapient

If it's "sapient", we can already assume it's also "sentient".

and while it is deaf

I think a better term is "while it is incapable of audio perception".

which is also permitted to personnel for informal use.

"which personnel are permitted to use during informal communication"

is currently alighted

"is currently aligned"

Should SCP-XXXX's become

"Should SCP-XXXX become"

deffense mechanism

"defense mechanism". If you struggle with spelling errors, I recommend getting some sort of browser plugin to make it easier to spot such errors.

and it even it doesn't

"though even it doesn't"

SCP-XXXX's body temperature body reaches extremes

"SCP-XXXX's body temperature reaches extreme levels"

The Foundation was able to get there first

Doesn't sound very clinical, try "The Foundation was the first to reach and contain the area."

Thanks SO much for the insightful review and guidance. Going to make some changes based on your suggestions.

In regards to the black bars in the Containment Procedures, the exact location of the site is meant to be on a "need to know" basis, although if you are clever you might be able to figure it out from what is presented.

Just in case, don't actually leave that line in there if you mainlist it.

This Site’s main buildings are subterranean, located 2 kilometers beneath the surface and designed to withstand high intensity radiation and temperatures, as well as substantial seismic activity. The entryway is disguised to look like an abandoned mine-shaft from the outside. On-site personnel are not permitted to leave the site if SCP-XXXX is within 3 kilometers of the entrance.

A secondary bunker is located 13 kilometers from the main facility, outside of the Site’s perimeter, and is disguised to look like a civilian natural research station. Permission for the construction of additional “satellite facilities” around the perimeter border is pending.

Usually, Site information wouldn't be in the SCP if the Site was truly need-to-know basis; they'd know what the Site. I wouldn't say to get rid of it, but maybe move it elsewhere? The line "On-site personnel are not permitted to leave the site if SCP-XXXX is within 3 kilometers of the entrance." should be fine to keep, though.

the on-site warheads

What is this? White Sands? :P

Besides that, the content is pretty good. I like it. As said above, I would love to see an interview log to reveal most of the story since as of right now it doesn't seem to really have one so far.

Thanks for the suggestions. Don't worry, I plan to take off the name when I upload to mainlist, its just there for reference now. Also, I thought most sites have nuclear warheads that detonate as a last resort in the event of a catastrophic containment breach (the video game even shows this to be a thing.)

But yeah, I cut down the site description data, but left in a few technical details. And yeah…I think I'll add an interview before I upload to the mainsite.

Yo! I like this a lot! Not to parrot what Bear-run said too much, the ambivalence in the monster is really cool, and it seems to really separate itself. I especially like the long containment procedures, they seem fitting for something of this caliber.

I would also like to say that I see a lot of parallels to Dr. Manhattan from Watchmen, but set in a super realistic sort of tone, which may be one of the reasons I particularly enjoy this one. Great writing, feels like it was written by someone with a ton of experience in this.

To limit damage to the ground via contact with its body, SCP-XXXX is capable of a form of levitation, and is able to suspend itself no more than a meter or so in the air.

But why does it care about the ground in this scenario?

which it was taught as its primary forms of communication with foundation personnel

So, Foundation should be capitalized, as well as forms being singular rather than plural.

It has yet to offer much insight as to its origin or species other than the following: when questioned about these topics

This could be cleared up a bit, it would make a bit more sense to be along the lines of "When questioned about its origins, SCP-XXXX responds by pointing towards the Sun, even if it currently has no means of seeing its position.

However, it has expressed repeated desires for more space to wander, and to interact with staff so that it may learn more about the world, or simply enjoy socialization.

The 'However' transition thing here seems a little non-clerical, consider sterilizing it a bit more. Remember, this a document that is theoretically just supposed to help someone know the basic characteristics and what to do or not to do around it, so they wouldn't waste time on literary transitions.

While the shortest on record lasted only 7 seconds, and most only last a couple of minutes, the longest recorded unbroken Nova Event lasted for █ days and █ hours. This resulted in the complete destruction of Site-█

Ok… so here is a good example of why I really dislike blacktext. You could give me any number, for any of these blanks, and the effect would be the same. I get no sense of mystery from not knowing how long something lasted, and the effect on me is fairly similar if it is anything longer than a day, which it clearly was. This is also a good time to mention how unnecessary blacktexting Site names are, just pick some obscure number that isn't already a famous site and you are done. All blacktexting any Site name does is take the reader out of it.

The amount of ionizing energy XXXX emits, even in its more "agreeable" states or at the so called “safe distance”, is NSFL.

Don't say NSFL. Say lethal. No scientist would say NSFL if they were talking about how this is killing someone.

-Dr █████, head of Site-██

Again. What is gained from me not knowing this guy's last name. Any non-absurd name could go in here and it would work much better.